./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:55:20,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:55:20,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:55:20,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:55:20,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:55:20,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:55:20,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:55:20,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:55:20,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:55:20,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:55:20,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:55:20,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:55:20,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:55:20,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:55:20,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:55:20,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:55:20,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:55:20,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:55:20,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:55:20,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:55:20,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:55:20,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:55:20,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:55:20,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:55:20,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:55:20,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:55:20,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:55:20,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:55:20,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:55:20,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:55:20,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:55:20,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:55:20,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:55:20,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:55:20,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:55:20,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:55:20,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:55:20,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:55:20,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:55:20,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:55:20,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:55:20,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:55:20,639 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:55:20,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:55:20,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:55:20,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:55:20,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:55:20,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:55:20,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:55:20,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:55:20,642 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:55:20,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:55:20,643 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:55:20,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:55:20,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:55:20,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:55:20,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:55:20,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:55:20,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:55:20,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:55:20,645 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:55:20,645 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:55:20,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:55:20,645 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:55:20,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:55:20,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:55:20,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:55:20,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:55:20,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:55:20,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:55:20,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:55:20,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:55:20,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:55:20,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:55:20,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:55:20,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:55:20,648 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:55:20,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:55:20,649 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:55:20,649 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:55:20,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:55:20,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:55:20,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:55:20,973 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:55:20,974 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:55:20,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-08-30 12:55:22,066 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:55:22,314 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:55:22,315 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-08-30 12:55:22,334 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a6dd807/d7e7f49f135c43559cfeb060da2498d2/FLAG77cc4179a [2023-08-30 12:55:22,355 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a6dd807/d7e7f49f135c43559cfeb060da2498d2 [2023-08-30 12:55:22,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:55:22,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:55:22,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:55:22,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:55:22,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:55:22,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f73d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22, skipping insertion in model container [2023-08-30 12:55:22,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:55:22,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:55:22,606 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 12:55:22,702 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2023-08-30 12:55:22,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:55:22,718 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:55:22,742 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 12:55:22,772 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2023-08-30 12:55:22,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:55:22,809 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:55:22,810 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:55:22,810 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 12:55:22,816 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:55:22,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22 WrapperNode [2023-08-30 12:55:22,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:55:22,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:55:22,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:55:22,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:55:22,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,852 INFO L138 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 109 [2023-08-30 12:55:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:55:22,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:55:22,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:55:22,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:55:22,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:55:22,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:55:22,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:55:22,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:55:22,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (1/1) ... [2023-08-30 12:55:22,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:55:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:55:22,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 12:55:22,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 12:55:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 12:55:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-30 12:55:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-30 12:55:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 12:55:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:55:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:55:22,965 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:55:23,129 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:55:23,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:55:23,313 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:55:23,406 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:55:23,406 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 12:55:23,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:55:23 BoogieIcfgContainer [2023-08-30 12:55:23,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:55:23,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:55:23,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:55:23,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:55:23,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:55:22" (1/3) ... [2023-08-30 12:55:23,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352ba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:55:23, skipping insertion in model container [2023-08-30 12:55:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:55:22" (2/3) ... [2023-08-30 12:55:23,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352ba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:55:23, skipping insertion in model container [2023-08-30 12:55:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:55:23" (3/3) ... [2023-08-30 12:55:23,416 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2023-08-30 12:55:23,423 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:55:23,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:55:23,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-08-30 12:55:23,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352ba9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 12:55:23, skipping insertion in model container [2023-08-30 12:55:23,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 12:55:23,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 12:55:23,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 12:55:23,434 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 12:55:23,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:55:23" (3/3) ... [2023-08-30 12:55:23,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 12:55:23,441 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-08-30 12:55:23,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-08-30 12:55:23,445 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 12:55:23,446 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 12:55:23,446 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 12:55:23,490 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 12:55:23,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 12:55:23,492 INFO L158 Benchmark]: Toolchain (without parser) took 1129.73ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 43.2MB in the beginning and 43.4MB in the end (delta: -222.0kB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,493 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:55:23,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.83ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 42.9MB in the beginning and 73.2MB in the end (delta: -30.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,496 INFO L158 Benchmark]: Boogie Preprocessor took 21.30ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,496 INFO L158 Benchmark]: RCFGBuilder took 533.40ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 49.1MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,497 INFO L158 Benchmark]: TraceAbstraction took 22.31ms. Allocated memory is still 98.6MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,497 INFO L158 Benchmark]: Witness Printer took 57.83ms. Allocated memory is still 98.6MB. Free memory was 46.0MB in the beginning and 43.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:55:23,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.83ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 42.9MB in the beginning and 73.2MB in the end (delta: -30.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.30ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.40ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 49.1MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22.31ms. Allocated memory is still 98.6MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 57.83ms. Allocated memory is still 98.6MB. Free memory was 46.0MB in the beginning and 43.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-08-30 12:55:23,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE